Objects in the image:
category: person
category: truck
category: car
category: truck
category: car
category: truck
category: traffic light
category: traffic light
category: traffic light
category: person

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it in the front?
a: No
q: is it signal?
a: No
q: is it a vehicle?
a: Yes
q: Is it a car near the green board?
a: No